package com.e3.web.core.server;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.e3.web.login.server.LoginHelper;

public class LoginCheckFilter implements Filter {

	public void destroy() {

	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
		HttpServletRequest httpRequest = (HttpServletRequest)request;
		Object value = LoginHelper.getSession(httpRequest);
		if(value == null){
			HttpServletResponse httpResponse = (HttpServletResponse) response;
			LoginHelper.gotoLogin(httpRequest, httpResponse);
		}
		filterChain.doFilter(request, response);
	}

	public void init(FilterConfig arg0) throws ServletException {

	}

}
